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3 years ago

You withdraw $42 from an account

Mathematics

2 answers:

masya89 [10]3 years ago

6 0

Anything else? there isnt a question.

Vikki [24]3 years ago

3 0

Im pretty sure that its -42 but only if there was no money in the account to start with, so it really depends on the amount that your starting with. :)

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“calculate the value of x”

ASHA 777 [7]

X = 10 because i’m telepathic and can see your paper

5 0

3 years ago

What are the real or imaginary solutions of each polynomial equation?

Semmy [17]

1) a
2) c

#1 explanation:

x^4-20x^2=-64
x^4-20x^2+64=0
(find a number that multiplies to the last number aka 64 and adds up to b aka 20)
((x-4)(x-16))^2
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same for #2 w different variable and numbers

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3 years ago

What is the value of f(-3) when f(x)=5(2)x

xeze [42]

Answer:

-30

Step-by-step explanation:

f(x)=5(2)x

f(-3)=5(2)(-3)

f(-3)=10(-3)

f(-3)=-30

4 0

3 years ago

At a particular restaurant, 62% of all customers order an appetizer and 41% of all customers order dessert. If 69% of all custom

jekas [21]

Answer:

In terms of probablity (A - appetizer oredered, B - desert ordered)

P(A)=63%

P(B)=40%

P(AorB)=76%.

Using the formula:

P(AorB)=P(A)+P(B)-P(A&B) we get P(A&B)=63%+40%-76%=27% (probability we were looking for).

5 0

2 years ago

A set of wrist watch prices are normally distributed with a mean of 767676 dollars and a standard deviation of 101010 dollars. W

Akimi4 [234]

Answer:

0.8224

Step-by-step explanation:

Data

mean: $76

standard deviation, sd: $10

first value of interest, x1: $63

second value of interest, x2: $90

z-score for x1:

z1 = (x1 - mean)/sd = (63 - 76)/10 = -1.3

z-score for x2:

z2 = (x2 - mean)/sd = (90 - 76)/10 = 1.4

The proportion of wrist watch prices are between $63 and $90 is:

P(z1 < z < z2) = P(z < 1.4) - P(z < -1.3)

P(z < 1.4) = 0.9192 (see first picture attached)

P(z < -1.3) = 0.0968 (see second picture attached)

P(z1 < z < z2) = 0.9192 - 0.0968 = 0.8224

7 0

3 years ago